Home / 378,582,656.44-522,449,142.08-213,569,715.64

Finding the Fourth Proportional to 378,582,656.44, 522,449,142.08 and 213,569,715.64

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Solution

The fourth proportional to 378,582,656.44, 522,449,142.08 and 213,569,715.64 is: 294,729,071.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,582,656.44 : 522,449,142.08 = 213,569,715.64 : x
  2. Step 2: Convert to fraction form
    378,582,656.44/522,449,142.08 = 213,569,715.64/x
  3. Step 3: Cross multiply
    378,582,656.44x = 522,449,142.08 × 213,569,715.64
  4. Step 4: Simplify right side
    378,582,656.44x = 111,579,314,710,387,552
  5. Step 5: Solve for x
    x = 111,579,314,710,387,552/378,582,656.44
  6. Step 6: Final answer
    x = 294,729,071.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.